// reader_writer_lock_test.cpp

// Copyright (c) 2011 Minor Gordon
// All rights reserved

// This source file is part of the Yield project.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the Yield project nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL Minor Gordon BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "yield/exception.hpp"
#include "yield/thread/reader_writer_lock.hpp"
#include "yield/thread/thread.hpp"
#include "yunit.hpp"

TEST_SUITE(ReaderWriterLock);

namespace yield {
namespace thread {
TEST(ReaderWriterLock, rdlock) {
  if (!ReaderWriterLock().rdlock())
    throw Exception();
}

//class ReaderWriterLockMultiReaderTest : public ReaderWriterLockTest {
//public:
//  // yunit::Test
//  virtual void run() {
//    bool rdlock_ret = rwlock.rdlock();
//    throw_assert(rdlock_ret);
//
//    auto_Object<Thread> thread = new Thread(thread_run, this);
//    thread->join();
//  }
//
//private:
//  static void thread_run(void* this_) {
//    bool rdlock_ret
//    = static_cast<ReaderWriterLockMultiReaderTest*>(this_)
//      ->rwlock.rdlock();
//    throw_assert(rdlock_ret);
//  }
//};
//
//TEST(
//  ReaderWriterLock,
//  rdlock_multiple,
//  ReaderWriterLockMultiReaderTest
//) {
//  ReaderWriterLockMultiReaderTest::run();
//}

TEST(ReaderWriterLock, rdunlock) {
  ReaderWriterLock rwlock;
  if (!rwlock.rdlock())
    throw Exception();
  rwlock.rdunlock();
  if (!rwlock.rdlock())
    throw Exception();
}

TEST(ReaderWriterLock, tryrdlock) {
  if (!ReaderWriterLock().tryrdlock())
    throw Exception();
}

TEST(ReaderWriterLock, trywrlock) {
  if (!ReaderWriterLock().trywrlock())
    throw Exception();
}

TEST(ReaderWriterLock, wrlock) {
  if (!ReaderWriterLock().wrlock())
    throw Exception();
}

TEST(ReaderWriterLock, wrunlock) {
  ReaderWriterLock rwlock;
  if (!rwlock.wrlock())
    throw Exception();  
  rwlock.wrunlock();
  if (!rwlock.wrlock())
    throw Exception();
}
}
}
